White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Most likely cause is a blown head gasket, cracked heard, or both. STOP driving this car until you can have it repaired or you will destroy the engine.
NO!! White smoke indicates the burning of oil. The law says, "ANY smoke coming from the engine during any part of the test is grounds for failure." I've been an Emissions guy in Denver for 23 years. White smoke is oil. Black is gas (too rich). Black smoke can get pricey. White smoke is always pricey!!
your car is burning oil.
Reverse has nothing to do with it, unless the smoke is coming from your differential. White smoke typically indicates you are burning oil somewhere.
If you have knocking from the engine and smoke from the exhaust then you have far more problems than the car just not starting. Sick professional help immediately.
Just having a hole in the muffler won't cause smoke to form. Any smoke coming from an engine is caused by either environment changes (white smoke while engine is warming up), or an engine burning oil (blue smoke). Sometimes even a bad catalytic converter can cause smoke. The hole in the muffler simply gives the smoke a way out. Trying looking for external oil leaks or checking he oil level occasionally to see if it is burning oil. You may see water vapor is there is a hole in the muffler but it wouldn't last long once the muffler warms up and the moisture is burned off. She shouldn't see actual smoke unless there is a problem with the engine.
Car maintenance is very important for a smooth ride. When there is white smoke coming out of the exhaust, it is usually an indication of water in the engine.
White smoke is usually vaporized coolant. You may have a blown gasket or a crack somewhere.
That smoke is steam. You have a leak in the radiator or a hose. Take it to a mechanic.
WHERE IS THE SMOKE COMING FROM ?
You may have serious engine damage. Have a mechanic look at your car.
Smoke could be coming from the vents of your car for a number of reasons. You may have an internal car fire.
If you have white smoke coming out the tail pipe and the smoke has a sweet smell to it, the car has bad problems.